1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // This class is called by the WebResourceService in a sandboxed process 6 // to unpack data retrieved from a web resource feed. Right now, it 7 // takes a string of data in JSON format, parses it, and hands it back 8 // to the WebResourceService as a list of items. In the future 9 // it will be set up to unpack and verify image data in addition to 10 // just parsing a JSON feed. 11 12 #ifndef CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_ 13 #define CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_ 14 15 #include <string> 16 17 #include "base/basictypes.h" 18 #include "base/memory/scoped_ptr.h" 19 20 namespace base { 21 class DictionaryValue; 22 } 23 24 class WebResourceUnpacker { 25 public: 26 static const char* kInvalidDataTypeError; 27 static const char* kUnexpectedJSONFormatError; 28 29 explicit WebResourceUnpacker(const std::string &resource_data); 30 ~WebResourceUnpacker(); 31 32 // This does the actual parsing. In case of an error, error_message_ 33 // is set to an appropriate value. 34 bool Run(); 35 36 // Returns the last error message set by Run(). 37 const std::string& error_message() { return error_message_; } 38 39 // Gets data which has been parsed by Run(). 40 base::DictionaryValue* parsed_json() { 41 return parsed_json_.get(); 42 } 43 44 private: 45 // Holds the string which is to be parsed. 46 std::string resource_data_; 47 48 // Holds the result of JSON parsing of resource_data_. 49 scoped_ptr<base::DictionaryValue> parsed_json_; 50 51 // Holds the last error message produced by Run(). 52 std::string error_message_; 53 54 DISALLOW_COPY_AND_ASSIGN(WebResourceUnpacker); 55 }; 56 57 #endif // CHROME_UTILITY_WEB_RESOURCE_UNPACKER_H_ 58
